Influence of ECAPressing temperature on crystallinity and mechanical behaviour of polypropylene and high-density polyethylene / Influência da temperatura de ECAPressing na cristalinidade e comportamento mecânico do polipropileno e do polietileno de alta densidade

Authors

  • Paulo Junior Faria Bertuci Brazilian Journals Publicações de Periódicos, São José dos Pinhais, Paraná
  • Gláucio Soares da Fonseca
  • Luciano Pessanha Moreira
  • Neil de Medeiros

DOI:

https://doi.org/10.34117/bjdv8n5-318

Keywords:

equal channel angular pressing, polypropylene, high-density polyethylene.

Abstract

In this paper, the influence of single equal channel angular pressing, ECAPressing, pass and processing temperature on crystallinity evolution and mechanical behaviour of the polymers polypropylene, PP, and high-density polyethylene, HDPE was investigated. ECAPressing tests were performed at the temperatures of 25, 50, 75 and 100°C for HPDE and 25, 90 and 120ºC for PP. The materials mechanical behaviour before and after ECAPressing tests was evaluated from room temperature compression tests while their crystallinity changings were analyzed through differential scanning calorimetry, DSC, experiments. In terms of strengthening and by comparison with as-received materials, it was observed an interesting efficiency of ECAPressing performed at 100°C for HDPE and 120°C for PP. In relation to crystallinity evolution, the results obtained from DSC tests showed its considerable increasing for higher pressing temperatures also by comparing either to as-received conditions or after single pass of equal channel angular pressing at room temperature.

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Published

2022-05-16

How to Cite

Bertuci, P. J. F., da Fonseca, G. S., Moreira, L. P., & de Medeiros, N. (2022). Influence of ECAPressing temperature on crystallinity and mechanical behaviour of polypropylene and high-density polyethylene / Influência da temperatura de ECAPressing na cristalinidade e comportamento mecânico do polipropileno e do polietileno de alta densidade. Brazilian Journal of Development, 8(5), 37617–37628. https://doi.org/10.34117/bjdv8n5-318

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